This investigation has the students investigate how many bubbles they can stack one at a time! Perfect for an engaging STEM activity! This Lab booklet follows the steps of the scientific method. Students will be Predicting, Observing,Designing. Measuring, Illustrating and reflecting with discussion questions about their stacking process! Who doesn't love Bubbles? End of Year worksheets and Activities and experiments for first, second, third and fourth grades. End of Year experiments,.